Onset of Decoherence in Open Quantum Systems

Abstract

We introduce a new approximation scheme for evaluation of onset of decoherence at low temperatures in quantum systems interacting with environment. The approximation is argued to apply at short and intermediate times. It provides an approach complementary to Markovian approximations and appropriate for evaluation of quantum computing schemes.

12 pages in PostScript

References in corpus (3)

• Theory of nuclear induced spectral diffusion: Spin decoherence of phosphorus donors in Si and GaAs quantum dots
• Measures of Decoherence
• Gate errors in solid state quantum computation

Cited by in corpus (6)

• Rigorous Born Approximation and beyond for the Spin-Boson Model
• Additivity of decoherence measures for multiqubit quantum systems
• Short-time decoherence of Josephson charge qubit nonlinearly coupling with its environment
• Exact Born Approximation for the Spin-Boson Model
• Short-time decoherence of Josephson charge qubits
• Short-time decoherence of Josephson charge qubits in Ohmic and 1/f noise environment